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authorKristen Carlson Accardi <kristen.c.accardi@intel.com>2007-05-23 13:57:38 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-23 20:14:11 -0700
commit86ce18d7b7925bfd6b64c061828ca2a857ee83b8 (patch)
treeb753b7fd6d195aa7ed9eebc5a3917c5f20786260 /include
parent352823160613b65fdaa558be486720a71f75ed86 (diff)
downloadop-kernel-dev-86ce18d7b7925bfd6b64c061828ca2a857ee83b8.zip
op-kernel-dev-86ce18d7b7925bfd6b64c061828ca2a857ee83b8.tar.gz
genhd: expose AN to user space
Allow user space to determine if a disk supports Asynchronous Notification of media changes. This is done by adding a new sysfs file "capability_flags", which is documented in (insert file name). This sysfs file will export all disk capabilities flags to user space. We also define a new flag to define the media change notification capability. Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/genhd.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 4c03ee3..3fcfed2 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -94,6 +94,7 @@ struct hd_struct {
#define GENHD_FL_REMOVABLE 1
#define GENHD_FL_DRIVERFS 2
+#define GENHD_FL_MEDIA_CHANGE_NOTIFY 4
#define GENHD_FL_CD 8
#define GENHD_FL_UP 16
#define GENHD_FL_SUPPRESS_PARTITION_INFO 32
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